ADuCM320 Hardware Reference Manual
UG-498
Rev. C | Page 31 of 196
Bits
Bit Name
Description
Reset Access
[7:5]
RESERVED
Reserved
0x0
R
[4:0]
ADCCP
Select ADC channel.
0x1F
RW
0x0: AIN0.
0x1: AIN1.
0x2: AIN2.
0x3: AIN3.
0x4: AIN4.
0x5: AIN5.
0x6: AIN6.
0x7: AIN7.
0x8: AIN8.
0x9: AIN9.
0xA: AIN10.
0xB: AIN11.
0xC: AIN12.
0xD: AIN13.
0xE: AIN14.
0xF: AIN15.
0x10: reserved.
0x11: reserved.
0x12: IDAC3.
0x13: IDAC1.
0x14: IDAC0.
0x15: IDAC2.
0x16: TEMP_SENSOR.
0x17: VREFP_PADC: Connect ADC_REFP to positive input. Note that this pin should not be
measured relative to AGND. This selection is intended for measuring the differential voltage
between the negative input and ADC_REFP.
0x18: PVDD_IDAC2: use this to measure the PVDD supply voltage for IDAC2.
0x19: IOVDD_2: use this to measure half of the IOVDD supply voltage.
0x1A: AVDD_2: use this to measure half of the AVDD supply voltage.
0x1B: VREFN_PADC: connect ADC_REFN to positive input.
0x1C to 0x1F: reserved.
ADC Sequencer Control Register
Address: 0x40086088, Reset: 0x00000000, Name: ADCSEQ
Table 16. Bit Descriptions for ADCSEQ
Bits
Bit Name
Description
Reset Access
31
ST
Sequence restart, used to force sequence to start at first channel when sequence is working.
0x0
W
1: set to 1 to restart the sequencer. Cleared after writing 1.
30
EN
Sequence enable.
0x0
W
1: set to 1 to enable the sequencer
29
RESERVED
Reserved.
0x0
R
[28:0]
CH
Select channels included in sequence operation. For each channel:
0x0
RW
0: channel is skipped.
1: channel is included in the sequence.
Each bit corresponds to an ADC channel as defined by ADCCHA[4:0]. For example a value of
0x33 (00110011) includes AIN0, AIN1, AIN4, and AIN5 in the sequence and excludes all other
channels.